The Taliban has claimed responsibility for an assault that demolished an anti-terrorist police headquarters in Pakistan's largest city, Karachi.

More than 15 people were reported killed and more than 100 others injured in the truck bomb and gunfire attack November 11 on the compound of the police Crime Investigation Department.

Police said the attackers first opened fire and then rammed an explosive-laden truck into the building, which is located in a high-security zone of Karachi, in an area that includes the U.S. consulate, luxury hotels and Pakistani government offices.

The building that was destroyed was reportedly used to detain and interrogate suspected criminals as well as militants, including those from banned extremist organizations.It was not immediately clear how many such suspects were inside the building at the time of the attack.

Reputed spokesmen for the Tehrik-e-Taliban Pakistan claimed responsibility for the assault in interviews with reporters for western news agencies.